1. An instrument that measures electric current in milliamperes (thousandths of an ampere).
Usage: technical; electronics

Examples

• The technician used a milliammeter to check the current flowing through the circuit.
• A milliammeter is essential for diagnosing problems in low-current electronic devices.
• The milliammeter reading showed that the battery was supplying 250 milliamperes to the motor.
• In the lab, students connected the milliammeter in series to measure the exact current.
• The milliammeter's scale made it easy to detect even small changes in current flow.